Efficient, clean and accurate series laser tube structure
Through the precise connection structure of the metal mounting components, the problem of inaccurate focus between the lens and the glass conduit in the series laser tube is solved, and the accuracy and stability of the laser beam path is achieved.
Patent Information
- Application Number
- CN202411379050.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-01-03
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
In the existing series laser tube, the connection between the lens and the glass conduit through hot melt is not accurate enough to focus and the relative position of the laser tube and the lens is not accurate enough, resulting in inaccurate laser beam path.
Metal mounting components are adopted, including metal mounting base, connecting tube and mounting sleeve. Through precise connection structure and bolt fixation, the lens is ensured to be stable and focused, and the laser tube and lens are accurately aligned.
It improves the focus accuracy of the lens and the accuracy of the laser beam output path, ensuring the enhancement and stability of the laser beam.
Smart Images
Figure CN119253391A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of laser tubes, and more specifically, to an efficient, clean and precise series laser tube structure. Background Art
[0002] Tandem laser tube is a configuration that connects multiple laser tubes together to achieve higher output power or wider spectral characteristics. This design is very useful in many applications, such as industrial cutting, laser marking, laser medical and other fields.
[0003] The tandem laser tube structure includes multiple independently working laser tubes. The outputs of two adjacent laser tubes are converged through lenses, so that a laser source forms a stronger light beam through the outputs of multiple laser tubes. In related technologies, the laser tube is usually a tube body made of glass, and a gain medium is arranged inside the tube body. Laser photons are excited and generated by the gain medium. The gain medium is usually gas, liquid or solid. The two adjacent laser tubes are also connected by a conduit made of glass. Two lenses are hot-melt-connected on the conduit for reflecting laser photons. Laser energy is provided from one end of a laser tube, and the laser energy forms laser photons by exciting the gain medium. The laser photons enter the other laser tube through the reflection of the two lenses and then excite the gain medium in the laser tube to form superimposed laser photons, thereby achieving the purpose of enhancing the laser beam.
[0004] The above technical solution is adopted to connect the lens and the glass tube by hot melting. The glass tube is melted to a certain softness and then the lens is installed. When the glass tube hardens again, the lens is installed. During the hot melting connection process, the connection part between the glass tube and the lens needs to be softened and polished. The direction and position of the two lenses are not easy to control and are easily displaced during the hot melting process, resulting in inaccurate focus of the two lenses and inaccurate relative position of the laser tube and the lens. Summary of the invention
[0005] In order to solve the problem in the related art that the lenses and the glass tube are connected by hot melting, which easily leads to inaccurate focusing of the two lenses and inaccurate relative position between the laser tube and the lenses, the present application provides an efficient, clean and accurate series laser tube structure.
[0006] An efficient, clean and precise tandem laser tube structure comprises at least two glass tube bodies for sealing and loading gain media, and both ends of each of the glass tube bodies are integrally formed with connecting straight tubes;
[0007] It also includes a lens metal mounting assembly, which includes a metal mounting seat, two metal connecting tubes and two metal mounting sleeves, one of the metal connecting tubes is inserted into a connecting straight tube at one end of the glass tube body, and the other metal connecting tube is inserted into a connecting straight tube at one end of the other glass tube body, the two metal mounting sleeves are both recessed with mounting grooves, and a lens is embedded in the mounting groove of each metal mounting sleeve, the two metal mounting sleeves are both fixedly connected to the fixed position of the metal mounting seat, the metal mounting seat is provided with two connecting holes, the two connecting holes are respectively connected to the two mounting grooves, the two metal connecting tubes are respectively inserted into the two connecting holes, and are respectively connected to the two mounting grooves through the two connecting holes, and the metal mounting seat is also provided with a channel, which is connected to the mounting grooves of the two metal connecting sleeves.
[0008] Preferably, the lens metal mounting assembly also includes a first connecting ring and a second connecting ring, the first connecting ring is fixedly connected to the outer walls of the two end portions of the metal connecting tube, the first connecting ring at the end of the metal connecting tube inserted into the connecting hole abuts against the metal mounting seat and is fixedly connected by bolts, the two connecting straight tube ends where the glass tube bodies and the metal connecting tubes are plugged are both formed with connecting platforms, the first connecting ring at the end of the metal connecting tube inserted into the connecting straight tube abuts against one side of the connecting platform on the connecting straight tube, and the connecting ring at the end of the metal connecting tube inserted into the connecting straight tube is fixed with a second connecting ring by bolts, the second connecting ring abuts against the other side of the connecting platform on the connecting straight tube, and the first connecting ring and the second connecting ring clamp and fix the connecting platform.
[0009] Preferably, sealing rings are provided on the two first connecting rings fixed on the metal connecting pipe, one of the sealing rings abuts against the metal mounting seat, and the other sealing ring abuts against the connecting platform.
[0010] Preferably, the two metal mounting sleeves are connected and fixed to the metal mounting seat by bolts.
[0011] Preferably, threads are provided on the outer wall of the metal connecting pipe.
[0012] The beneficial technical effects of the present application are: a metal mounting sleeve is used to mount the lens, and the mounting groove is set to match the lens size, so that the lens is stable in the metal mounting sleeve and is not easy to deviate. By fixing two metal mounting sleeves on fixed positions of the metal mounting seat, the metal mounting sleeve and the metal mounting seat are rigidly connected. During the installation process, the lens mounting accuracy is easy to control, which is conducive to accurate focusing of the two groups of lenses. By setting the inner aperture of the connecting straight tube and the aperture of the connecting hole to be equal to the outer diameter of the metal connecting tube, the metal connecting tube is positioned when inserted, which facilitates accurate alignment of the laser tube and the lens. One laser tube is accurately aligned with one lens and the two groups of lenses are accurately focused, so that the laser beam emission path is accurate. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 This is a schematic diagram of the overall structure of an efficient, clean and precise series laser tube structure of this embodiment.
[0014] Figure 2 Schematic diagram of the structure of the lens metal mounting assembly of this embodiment.
[0015] Figure 3 Schematic diagram of the structure of the glass tube body of this embodiment.
[0016] Figure numerals: 1. glass tube body; 11. connecting straight tube; 111. connecting platform; 2. lens metal mounting assembly; 21. metal mounting seat; 211. connecting hole; 212. channel; 22. metal connecting tube; 221. thread; 23. metal mounting sleeve; 231. mounting groove; 232. lens; 24. first connecting ring; 25. second connecting ring; 26. sealing ring. DETAILED DESCRIPTION
[0017] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.
[0018] Reference Figure 1-3, an efficient, clean and precise series laser structure, comprising a glass tube body 1 and a lens metal mounting assembly 2, the number of the glass tube bodies 1 is multiple, each glass tube body 1 is sealed and loaded with a gain medium, the number of the lens metal mounting assemblies 2 is N-1, N is the number of the glass tube bodies 1, and the multiple glass tube bodies 1 are connected in series through multiple lens 232 mounting assemblies, specifically, both ends of each glass tube body 1 are integrally formed with a connecting straight tube 11, each lens metal mounting assembly 2 includes a metal mounting seat 21 and two metal connecting tubes 22 and two metal mounting sleeves 23, the outer diameter of the metal connecting tube 22 is equal to the inner diameter of the connecting straight tube 11, one metal connecting tube 22 is plugged into the connecting straight tube 11 at one end of a glass tube body 1, and the other metal connecting tube 22 is plugged into the connecting straight tube 11 at one end of another glass tube body 1, the outer diameter of the metal connecting tube 22 is equal to the inner diameter of the connecting straight tube 11, the relative position of the metal connecting tube 22 and the glass tube body 1 is precise, and the two metal mounting sleeves 23 are both concave There is a mounting groove 231, and a lens 232 is embedded in the mounting groove 231 of each metal mounting sleeve 23. The metal mounting sleeve 23 is in the shape of an isosceles trapezoidal block. The two metal mounting sleeves 23 are respectively fixedly connected to the two inclined side walls of the metal mounting sleeve 23 and are symmetrically arranged, so that the refractive surfaces of the two groups of lenses 232 face each other, and the two groups of lenses 232 are inclined at a certain angle. The metal mounting sleeve 23 and the metal mounting seat 21 are rigidly connected. During the installation process, the installation accuracy of the lens 232 is easy to control, which is conducive to making the two groups of lenses 232 focus accurately; two connecting holes 211 are arranged on the bottom wall of the metal mounting seat 21, and the two connecting holes 211 are respectively connected to the two mounting grooves 231. The apertures of the two connecting holes 211 are equal to the outer diameter of the metal connecting tube 22. The two metal connecting tubes 22 are respectively inserted into the two connecting holes 211. The connection holes 211 are limited so that the relative position of the end of the metal connecting tube 22 and the lens 232 is accurate, and further the two glass tube bodies 1 are respectively accurately aligned with the two groups of lenses 232;The metal mounting seat 21 is also provided with a channel 212, which is connected to the mounting grooves 231 of the two metal connecting sleeves, so that the laser beam refracted by one set of lenses 232 can be projected onto the other set of lenses 232. In two adjacent laser tube bodies, two connecting straight tubes 11 with ports in the same direction are connected to a set of metal mounting components. One end of the laser tube body away from the metal mounting component is the laser beam entrance, and the other end of the laser tube body away from the metal mounting component is the laser beam exit. The laser beam is projected from the entrance and passes through the increase in the laser tube body. After the laser beam is enhanced by the gain medium, the laser beam is incident on a set of lenses 232 through the metal connecting tube 22 and the connecting hole 211, and is refracted and reversed by the set of lenses 232. The laser beam is incident on another set of lenses 232 through the channel 212, and is refracted and reversed again by the set of lenses 232. The laser beam is able to be incident on another glass tube body 1, and then enhanced by the gain medium in the glass tube body 1. Since the two sets of lenses 232 are accurately focused and the two glass tube bodies 1 are accurately aligned with the two sets of lenses 232, the laser beam emission path is accurate. ;
[0019] Reference Figure 1-3 The lens metal mounting assembly 2 also includes a first connecting ring 24 and a second connecting ring 25. The outer walls of both ends of the metal connecting tube 22 are fixedly connected with a first connecting ring 24. The first connecting ring 24 where the metal connecting tube 22 is inserted into the connecting hole 211 abuts against the metal mounting seat 21 and is fixedly connected by bolts, so that the metal connecting tube 22 is not easily separated from the metal mounting seat 21. The two are conveniently disassembled by bolt connection, which is convenient for maintaining the metal mounting seat 21. The outer walls of the ends of the connecting straight tubes 11 where the two glass tube bodies 1 are plugged into the metal connecting tubes 22 are both formed with connecting platforms 111. The first connecting ring 24 where the metal connecting tube 22 is inserted into one end of the connecting straight tube 11 4 is in contact with one side of the connecting platform 111 on the connecting straight tube 11, and a connecting ring at one end of the metal connecting tube 22 inserted into the connecting straight tube 11 is fixed with a second connecting ring 25 by bolts, and the second connecting ring 25 is in contact with the other side of the connecting platform 111 on the connecting straight tube 11, and the first connecting ring 24 and the second connecting ring 25 clamp and fix the connecting platform 111, so that the metal connecting tube 22 is fixed to the connecting straight tube 11, and the metal connecting tube 22 is not easy to be separated from the connecting straight tube 11, and the first connecting ring 24 and the second connecting ring 25 are connected by bolts, which is convenient for disassembly, and further convenient for the metal connecting tube 22 to be disassembled from the connecting straight tube 11, so as to facilitate the maintenance of the glass tube body 1.
[0020] Reference Figure 2Furthermore, sealing rings 26 are provided on the two first connecting rings 24 fixed on the metal connecting tube 22. One sealing ring 26 abuts against the metal mounting seat 21, and the other sealing ring 26 abuts against the connecting platform 111. Through the sealing of the sealing rings 26, it is not easy for external air to enter the glass tube body 1 from the two ports where the metal connecting tube 22 is connected to the metal mounting platform and the connecting straight tube 11, which is conducive to keeping the inside of the glass tube body 1 clean.
[0021] Reference Figure 2 Furthermore, the two metal mounting sleeves 23 are connected and fixed to the metal mounting seat 21 by bolts, which facilitates the disassembly and separation of the metal mounting sleeves 23 and the metal mounting seat 21, and facilitates the maintenance of both. A sealing ring 26 is also provided between the two metal mounting sleeves 23 and the metal mounting seat 21. The sealing of the sealing ring 26 prevents external air from easily entering the glass tube body 1 from the connection between the metal mounting sleeves 23 and the metal mounting seat 21, which facilitates keeping the glass tube body 1 clean.
[0022] Reference Figure 2 Furthermore, a thread 221 is provided on the outside of the metal connecting tube 22, and the thread 221 facilitates the metal connecting tube 22 to be connected to the thread 221 of the external mounting frame, so that the external mounting frame stably supports the glass tube body 1.
[0023] Although the embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. An efficient, clean and precise tandem laser tube structure, characterized by: It comprises at least two glass tube bodies for sealing and loading gain media, and both ends of each of the glass tube bodies are integrally formed with connecting straight tubes; It also includes a lens metal mounting assembly, which includes a metal mounting seat, two metal connecting tubes and two metal mounting sleeves, one of the metal connecting tubes is inserted into a connecting straight tube at one end of the glass tube body, and the other metal connecting tube is inserted into a connecting straight tube at one end of the other glass tube body, the two metal mounting sleeves are both recessed with mounting grooves, and a lens is embedded in the mounting groove of each metal mounting sleeve, the two metal mounting sleeves are both fixedly connected to the fixed position of the metal mounting seat, the metal mounting seat is provided with two connecting holes, the two connecting holes are respectively connected to the two mounting grooves, the two metal connecting tubes are respectively inserted into the two connecting holes, and are respectively connected to the two mounting grooves through the two connecting holes, and the metal mounting seat is also provided with a channel, which is connected to the mounting grooves of the two metal connecting sleeves.
2. According to claim 1, a highly efficient, clean and precise tandem laser tube device is characterized by: The lens metal mounting assembly also includes a first connecting ring and a second connecting ring. The first connecting ring is fixedly connected to the outer walls of the two end portions of the metal connecting tube. The first connecting ring at the end of the metal connecting tube inserted into the connecting hole abuts against the metal mounting seat and is fixedly connected by bolts. The ends of the connecting straight tubes where the two glass tube bodies are plugged into the metal connecting tubes are both formed with connecting platforms. The first connecting ring at the end of the metal connecting tube inserted into the connecting straight tube abuts against one side of the connecting platform on the connecting straight tube, and the connecting ring at the end of the metal connecting tube inserted into the connecting straight tube is fixed with the second connecting ring by bolts. The second connecting ring abuts against the other side of the connecting platform on the connecting straight tube. The first connecting ring and the second connecting ring clamp and fix the connecting platform.
3. The efficient, clean and precise tandem laser tube device according to claim 2, characterized in that: The two first connecting rings fixed on the metal connecting pipe are both provided with sealing rings, one of the sealing rings abuts against the metal mounting seat, and the other sealing ring abuts against the connecting platform.
4. The efficient, clean and precise tandem laser tube device according to claim 1, characterized in that: The two metal mounting sleeves are both connected and fixed to the metal mounting seat by bolts.
5. The efficient, clean and precise tandem laser tube device according to claim 1, characterized in that: The outer wall of the metal connecting pipe is provided with threads.